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Core 5-AT - Core Nutritionals - Tiger Fitness

Core 5-AT

#2 Best Seller
in Core Nutritionals
by Core Nutritionals
$29.99 - $29.99
$29.99
$29.99 - $29.99
$29.99
You'll earn Tiger Reward Points on this product!
Description

Core 5-AT

Harden. Recomp. Restore.

Block Cortisol. Build Muscle. Stay Hard.

Cortisol is one of the body’s most abundant hormones and one of the most catabolic. While essential in small amounts, elevated cortisol can sabotage your progress by breaking down muscle tissue, suppressing recovery, and preventing the anabolic processes you want to maximize.

That’s where Core 5-AT comes in. Designed to combat the negative effects of cortisol, Core 5-AT helps you preserve muscle mass, support recovery, and maintain that hard, full look you’ve been working for. This powerful formula works to restore balance, optimize your hormonal environment, and keep you on track for recomposition success.

Key Benefits of Core 5-AT

Supports Body Recomposition – Promotes muscle preservation and a leaner, harder look.

Blocks Catabolic Activity – Helps reduce cortisol’s negative impact on muscle tissue.

Enhances Recovery & Growth – Supports protein synthesis and nutrient utilization.

Preserves Fullness & Density – Helps prevent glycogen breakdown for improved muscle appearance.

Restores Balance – Optimizes the body’s environment for strength and performance.

Product Highlights

Hormonal balance and recomposition support

Designed to combat cortisol’s catabolic effects

Effective formula for athletes and physique focused lifters

Stimulant-free and stack friendly

Suggested Use

Take the recommended serving of Core 5-AT daily. For best results, use consistently as part of your training and nutrition plan.

Nutrition Info



Warning Concerning California Residents: This product may contain chemicals known to the State of California to cause cancer and birth defects or reproductive harm.

Customer Reviews

Overall rating: 4.9 / 5 from 9 reviews.

I feel like I’m seeing changes already in the 2 weeks I’ve been taking this. Have not yet stacked with HARD just so I can see how this does on its own.

Milena B. 5/5 Verified

Core 5-AT

Seems like it is definitely working.

Angela S. 5/5 Verified

Core 5-AT

I priced shopped this item because it goes with the Big Poppa Stack from Core Nutritionals it works synergistically with the other 3 products and the stack Rocks!!!!

Norvell H. 5/5 Verified

Core 5-AT

Amazing results stacked with Cord Hard during prep. Will use again! Great shipping and customer service with Tigerfitness, ALWAYS.

Squitta M. 5/5 Verified

Core 5-AT

The reviews on this product were good, as well as the reviews from Tiger Fitness in general so I was excited to give it a try and was very satisfied with the customer service and quick delivery and so far loving the product and will be ordering more things in the future through Tiger Fitness :)

Trisha G. 5/5 Verified

Core 5-AT

Within two weeks I could feel a difference in mood and sleep. It also made me pee a lot more? But I could tell my estrogen/cortisol was being better controlled. This as someone with generally higher levels.

Luis R. 5/5 Verified

Core 5-AT

I have been taking this everyday for 3 weeks to get ready for summer! I have already noticed results.

Alyssa O. 5/5 Verified

Core 5-AT

Love this stuff! I always do an 8 week run (2 bottles) stacked with Core Hard in May and June which gets me looking really lean and hard for the summer. It’s my go too summer prep stack

John 5/5 Verified

Core 5-AT

Have used this product in the past. It's a good supplement even with a horrible diet the first time around lost 6 pounds. This time on a good diet will see how good it is.

Remigio 4/5 Verified

Core 5-AT

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